EP 4130827 A4 20240501 - OPTICAL FIBER CABLE
Title (en)
OPTICAL FIBER CABLE
Title (de)
GLASFASERKABEL
Title (fr)
CÂBLE À FIBRE OPTIQUE
Publication
Application
Priority
- JP 2020057479 A 20200327
- JP 2021008929 W 20210308
Abstract (en)
[origin: US2022373753A1] This optical fiber cable is a central-core-type cable in which slotted rods are not used, and is composed of a core, a wrapper, a tension member, a ripcord, a sheath, and the like. The core is formed by twisting together a plurality of optical fiber units without back-twisting. The optical fiber units are formed by twisting together a plurality of intermittently-fixed optical fiber ribbons. A direction in which the optical fiber ribbons are twisted together is same as a direction in which the optical fiber units are twisted together.
IPC 8 full level
G02B 6/44 (2006.01)
CPC (source: EP US)
G02B 6/4403 (2013.01 - EP US); G02B 6/4413 (2013.01 - EP US); G02B 6/443 (2013.01 - US); H01B 11/02 (2013.01 - US); H01B 11/22 (2013.01 - EP); G02B 6/4433 (2013.01 - EP)
Citation (search report)
- [E] US 2021141178 A1 20210513 - KAJI TOMOAKI [JP], et al
- [A] YOSHIO HASHIMOTO, NAOKI OKADA, MICHIO SUEMATSU, MATSUHIRO MIYAMOTO: "High Density Dry Tube Cable Composing Tightly Stacked Fiber Ribbons", PROCEEDINGS OF THE 50TH IWCS, 15 November 2001 (2001-11-15), pages 463 - 469, XP040424626
- See also references of WO 2021192953A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
US 2022373753 A1 20221124; EP 4130827 A1 20230208; EP 4130827 A4 20240501; JP 2021157062 A 20211007; JP 7426873 B2 20240202; TW 202204957 A 20220201; TW I802857 B 20230521; WO 2021192953 A1 20210930
DOCDB simple family (application)
US 202217878971 A 20220802; EP 21776514 A 20210308; JP 2020057479 A 20200327; JP 2021008929 W 20210308; TW 110110382 A 20210323